element-embed.sub.html

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<!DOCTYPE html>

<!--

[%provenance%]

-->

<html lang="en">

  <meta charset="utf-8">

  <title>HTTP headers on request for HTML "embed" element source</title>

  <script src="/resources/testharness.js"></script>

  <script src="/resources/testharnessreport.js"></script>

  <script src="/fetch/metadata/resources/helper.sub.js"></script>

  <body>

  <script>

  'use strict';

  const params = {

    body: `

      <svg xmlns="http://www.w3.org/2000/svg" width="123" height="123">

        <rect fill="lime" width="123" height="123"/>

      </svg>

`,

    mime: 'image/svg+xml'

};

  function induceRequest(t, url) {

    const embed = document.createElement('embed');

    embed.setAttribute('src', url);

    document.body.appendChild(embed);

    t.add_cleanup(() => embed.remove());

    return new Promise((resolve) => embed.addEventListener('load', resolve));

  {%- for subtest in subtests %}

  promise_test((t) => {

    const key = '{{uuid()}}';

    return induceRequest(t, makeRequestURL(key, [% subtest.origins %], params))

      .then(() => retrieve(key))

      .then((headers) => {

        {%- if subtest.expected == none %}

          assert_not_own_property(headers, '[%subtest.headerName%]');

        {%- else %}

          assert_own_property(headers, '[%subtest.headerName%]');

          assert_array_equals(headers['[%subtest.headerName%]'], ['[%subtest.expected%]']);

        {%- endif %}

});

  }, '[%subtest.headerName%][%subtest.description | pad("start", " - ")%]');

  {%- endfor %}

  </script>

  </body>

</html>